Touch issues on Iphone 16 pro

Yesterday, I bought a new Iphone 16 pro, which had never been activated. Immediately after setting it up, I started experiencing problems with the screen's sensitivity. When I tried to type, half of the keys only worked after 2-3 attempts. This was particularly noticeable in apps. Additionally, the phone sometimes fails to recognize certain touches, particularly in the lower part of the screen. However, when I draw lines in my notes, they remain continuous. Similarly, when I drag an app shortcut across the screen, it remains uninterrupted. I tried everything I could. I disabled unnecessary keyboard features, reset the keyboard, restored my iPhone through DFU mode, and updated my iOS version to the latest. But nothing worked.